US3488260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash evaporators
Assignee: AMF Inc
•
Filing: 1966-03-23
•
Granted: 1970-01-06
•
Expires: 1986-03-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick Walter Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:02
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; B01D3/065; Y; Y02; Y02A; Y02A20/00; Y02A20/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB831478A
Cited
US3003931A
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US3096256A
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US3174914A
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US3228859A
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US3203464A
Cited
US3259552A
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US3219554A
Cited
US3197387A
Cited
US3312601A
Cited
US3342697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |